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Rodents and insects can be a big problem for both homeowners and business owners. The Thunder Bay District Health Unit provides information about prevention and control, and public health inspectors inspect businesses in the District – particularly restaurants and food vendors – for signs of pests…
Beach Notifications
The Thunder Bay District Health Unit will notify the public of any issues concerning beaches tested by the Health Unit.
Beach advisories will be issued in beaches outside of Thunder Bay (with the exception of private beaches and provincial parks) when recreational water…
The environment affects our children more than it does adults for various reasons (read on below). The Thunder Bay District Health Unit’s role is to inform the public about these risks and provide information on how to reduce them. We want to help you ensure your children – and all children living…
Ammonia is a colourless gas with a very distinct odour. People may readily recognize this smell because it is used in many household cleaners and window cleaning products. High levels of airborne ammonia gas can dissolve in water to cause corrosive ammonium hydroxide. Most people smell ammonia…
Radon is an invisible, odourless radioactive gas that can be found in homes across Canada. It is produced naturally in the ground as uranium breaks down. The resulting gas can seep through cracks in the foundation, pipe openings, sump pits, and other openings into your home. Although it is present…
The tools used in body art services (including tattoos, body piercing and micro-pigmentation – also known as “permanent makeup”) and salon services (including manicures and pedicures) often come into contact with blood and other bodily fluids. This increases the risk for transmitting serious…
Many homeowners in the Thunder Bay District rely upon septic systems or “onsite sewage treatment systems” to treat and disperse their sanitary wastewater. Approval for in-ground sewage treatment and dispersal is required in all parts of Ontario, including the unorganized lands.
The Thunder…
DineWise 3.0 - Updated Operator Education Package
As of March, 2025 the Operator Education Package has been updated.
The document includes two (2) changes to DineWise that are outlined on page four (4).
To download the updated package, click on the image below:
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Date
Contents
April 10, 2025
Spring Update: Covid-19 and RSV Vaccine
April 7, 2025
Early Frequent Issues - HPV Primary Screening
NEW Resources: Syphilis, Sexual Health, & U=U
IPV Shortage
Measles Vaccine and Travel…
This guideline provides infection control guidelines for child care facilities licensed for more than 5 children.
Updated: April 2023
According to a study released today by the Thunder Bay District Health Unit, 65% of homes in Oliver Paipoonge and 17% of homes in Marathon have high levels of radon. The study was conducted in Oliver Paipoonge and Marathon between the fall of 2017 and the spring of 2018, during the home heating…
The purpose of this study is to determine the prevalence of high levels of radon in Thunder Bay homes. The aim was to develop local recommendations about testing for radon and mitigation, and to inform public policy that would reduce the prevalence of excessive radon.
November 13, 2020 - In the coming days, Thunder Bay District Health Unit (TBDHU) public health inspectors (PHIs) will begin visiting every food and drink establishment in Thunder Bay and the district to conduct COVID-19 compliance assessments. Through these visits, TBDHU will assess adherence to…